## Gibbs Free Energy in cal

$\Delta G^{\circ}= \Delta H^{\circ} - T \Delta S^{\circ}$

$\Delta G^{\circ}= -RT\ln K$

$\Delta G^{\circ}= \sum \Delta G_{f}^{\circ}(products) - \sum \Delta G_{f}^{\circ}(reactants)$

Helen Mejia 1I
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Joined: Fri Sep 28, 2018 12:24 am

### Gibbs Free Energy in cal

When you calculate Gibbs free energy using enthalpy and entropy in cal will our final units for Gibbs free energy be cal per mole or just cal?

Chem_Mod
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### Re: Gibbs Free Energy in cal

If enthalpy and entropy are given in terms of moles, then it would be cal/mole.

Rachel-Weisz3C
Posts: 66
Joined: Fri Sep 28, 2018 12:23 am

### Re: Gibbs Free Energy in cal

It should be measured in cal/mol or J/mol. This conversion is 1 J= 0.239 cal but you probably won't need to convert, just use which ever is given.